id summary reporter owner description type status milestone component version severity resolution keywords cc 10638 unhandled exception in async sink, created by init_from_settings pal666@… Andrey Semashev "when settings file describes async file sink pointing to inaccessible location, async sink will be created without exception handler and will throw unhandled exception from async thread, killing application. easiest way to fix it is to add exception suppressor to async sinks, created by init_from_settings. i.e. {{{ else { p = init_formatter(boost::make_shared< sinks::asynchronous_sink< backend_t > >(backend), params, is_formatting_t()); p -> set_exception_handler ( make_exception_suppressor ( ) ); } }}} instead of {{{ else p = init_formatter(boost::make_shared< sinks::asynchronous_sink< backend_t > >(backend), params, is_formatting_t()); }}} " Bugs closed To Be Determined log Boost 1.56.0 Problem fixed